Closure and strainer device



Patented June 2, 1936 UNITED STATES kATENT OFFICE CLOSURE AND STRAINER DEVICE Applicationv March 23, 1934, Serial No. 717,037

8 Claims.

substances into the container and whereby in the coupling of a pipe or hose with the device or' the insertion of a nozzle thereinto, the closure plate will be moved into an open position permitting the admission of fluid into and through the device; a further object being to provide a cap for controlling the admission to the device and the closure plate thereof; a further object being to provide a large strainer cylinder or cup through which the fluid introduced into the device passes to strain the same prior to admission into the tank or other receiver; a further object being to provide a detachable ring by means of which the strainer device including said closure plate may be removed for cleaning and other purposes, said ring forming a seat in connection with which the closure plate operates; and with these and other objects in View, the invention consists in a device of the class and for the purpose specified, which is simple in construction, efcient in use, and which is constructed as hereinaiter described and claimed.

The invention is fully disclosed in the following specication, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which:

Fig. 1 is a transverse sectional view of my improved device indicating -one method of its use.

Fig. 2 is a View similar to Fig. 1 showing only a part of the construction with parts removed and with parts in a diierent position; and,

Fig. 3 is a sectional plan View on the line 3 3 of Fig. l. f

In the accompanying drawing, I have shown one use of my improved device, namely, for fuel tanks and particularly what are known as fuel oil tanks and 5 represents part of the tank which includes an inwardly directed tubular extension 5, the inner end of which has an inturned ilange l. The outer end of the tubular portion 6 is internally threaded as seen at 8 and at the base of the thread is an inwardly projecting seat 9. At this time, it will be understood that my device may be applied to tanks, containers or receivers of any kind or class and the tubular extension 6 is not absolutely essential. Arranged within the tube I5 is a thimble-shaped or cup-shaped strainer body I9, the upper end of which is provided with an outwardly extending rim portion I l which rests. upon the seat 9 to support the body ID within the container. Secured to a downwardly extending flange I la. of the rim I I is a wire frame I2 consisting of four depending rods I3 which extend inwardly over the bottom Illa of the body I as seen at Ill and then extend upwardly and inwardly as seen at I5 and are joined to a tube or bearing I6 disposed centrally of the body Il).

Arranged in the upper end of the body I3 is a closure plate Il having outwardly extending U- shaped lugs I8 which engage the rods I3 to help in guiding the plate Il in its movement within the body Il), the plate having a downwardly extending central rod I9 which operates in the tubular bearing I6 to further guide the plate in its movement. A spring 20 seats on the lower surface of the plate I'I and upon the inwardly extending portions I4 of the rods I3 and this spring serves to normally hold the closure plate I1 seated upon the lower surface of a ring 2| in threaded engagement with the threaded bore 8, as will be apparent. 'Ihe ring 2I also serves to support the rim EI upon the seat 9. The ring 2| has a large threaded bore 22 and a smaller threaded bore 23, a closure cap 24 being in threaded engagement with the bore 22 and forming an "outer closure for the admission passage of the tank or container. The cap 24 has a key slot 24a by means of which the same may be coupled and uncoupled. The ring 2l has circumferentially spaced key apertures 2Ia by means of which the same may be coupled and uncoupled with the container. The threaded bore 23 is adapted to receive a union or the like 25 of a pipe or hose line 26 as indicated in dotted lines in Fig. 2 of the drawing.

In attaching the union or nipple 25 with the ring 2l, the closure plate I1 is forced inwardly by engagement of said union or nipple with upwardly projecting lugs Ila on the upper face of said plate so as to provide a clear passage of the fluid into the strainer body IIJ and around the periphery of the plate I1..

In the use of the device on tanks or containers wherein nozzles are commonly employed for introducing the fluid into the tank, it will be understood that the end of the nozzle will strike the upwardly projecting lugs Ila, causing the closure plate I1 to be depressed. With this use, the weight of the nozzles will be sufcient to depress the closure plate Il and hold the same in open position. In both uses, however, it will be understood that when the nozzle is removed or the coupling or nipple removed, the spring 20 will automatically return the plate l1 into closed position, seating upon the lower surface of the ring 2l. It will also be apparent that whenever necessary or desirable, the strainer body l may be removed by simply removing the ring 2l for cleaning, repair or replacement.

It will also be apparent that the particular type or construction of strainer body employed will depend entirely upon the particular use of my invention which is designed primarily for use in conjunction with various kinds and classes of lubricants, fuel oils, gases and the like or may be used in conjunction with fluids or fluid chemicals of any kind or class, especially wherein it is desirable to maintain a closure to prevent dust, dirt or other foreign material from entering a tank or container.

It Will be understood that while I have shown certain details lof construction for carrying my invention into effect, I am not necessarily limited to these details and various changes in and modications of the construction herein shown and described may be made within the scope of the appended claims without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A device of the class described comprising a thimble-shaped strainer body, a supporting frame within said body, a closure plate slidably engaging said frame, means at one end of the frame for limiting outward movement of said plate and against which the plate seats to form a closure admission tosaid strainer body, a spring for supporting said plate in closed position, said means having a large admission port, and said plate having projecting lugs extending into said admission port whereby the placement of a tubular fluid supply means into the admission port will operate to move said plate into open position to permit the passage of fluid into said strainer body.

2. A device of the class described comprising a thimble-shaped strainer body, a supporting frame within said body, a closure plate slidably` engaging said frame, means at one end of the frame for limiting outward movement of said plate and against which the plate seats to form a closure admission to said strainer body, a spring for supporting said plate in closed position, said means having a large admission port and said plate having projecting lugs extending into said admission port whereby the placement of a tubular fluid supply means into the admission port will operate to move said plate into open position to permit the passage of fluid into said strainer body, and a cap controlling admission to said port and plate.

3. The combination with a fluid receptacle having a large admission opening, of a device for controlling admission of fluid into the receptacle through said opening, said device comprising a ring mounted within said opening and contained within the boundaries of said receptacle, aclosureV plate movable toward and from the inner surface of said ring to control admission of fluid through said opening, tensional means for normally supporting said plate in seated and closed position on the ring, means on the outer surface of said plate whereby the insertion of a fluid supply tubular member into said opening through said ring Will automatically move said plate into open position to permit the transmission of uid into the receptacle, means on said ring for detachably coupling a fluid supply member therewith, said device including a large strainer body disposed in the receptacle around said closure plate, and means including said ring for supporting the strainer body in connection with said receptacle.

4. The combination with a uid receptacle having a large admission opening, of a device for controlling admission of fluid into the receptacle through said opening, said device cornprising a ring mounted within said opening and contained within the boundaries of said receptacle, a closure plate movable toward and from the inner surface of said ring to control admission of fluid through said opening, tensional means for normally supporting said plate in seated and closed position on the ring, means on the outer surface of said plate whereby the insertion of a uid supply tubular member into said opening through said ring will automatically move said plate into open position to permit the transmission of uid into the receptacle, means on said ring for detachably coupling a luid supply member therewith, said device including a large strainer body disposed in the receptacle around said closure plate and means including an openwork frame within the strainer body and independent of said ring for supporting and guiding the closure plate in its movement relatively to said ring.

5. The combination with a fluid receptacle having a large admission opening, of a device for controlling admission of fluid into the receptacle through said opening, said device comprising a ring mounted within said opening and contained .within the boundaries of said receptacle, a closure plate movable toward and from the inner surface of said ring to control admission of fluid through said opening, tensional means for normally supporting said plate in seated and closed position on the ring, means on the outer surface of said plate whereby the insertion of a iiuid supply tubular member into said opening through said ring will automatically move said plate into open position to permit the transmission of fluid into the receptacle, means on said ring for detachably coupling a fluid supply member therewith, said device including a large strainer body disposed in the receptacle around said closure plate, means including said ring for supporting the strainer body in connection with said receptacle and a closure cap detachably coupled with said ring for controlling admission to said plate.

6. The combination with a container having an admission passage including an inwardly extending circumferential flange on the wall of said passage forming a seat, of a device controlling the admission of fluid into the container through said passage, said device comprising a large strainer body supported on said flange, a ring secured in said passage and arranged within the boundaries of said container, said ring engaging the strainer body to support the same upon said seat, a closure plate mounted in said strainer body and normally seating on said ring to control admission through said passage, a frame independent of said ring and arranged in said strainer body and in connection with which the plate is slidably mounted, tensional means for normally holding the plate in closed or seated position, a closure cap detachably coupled with said ring and controlling access to said plate through the open end of the passage in said container, and projecting members on the outer surface of said plate adapted to be engaged by a iiuid admission tube in the movement of the plate into open position and to permit the transmission of fluid over said plate and downwardly through said strainer body.

7. The combination with a container having an admission passage including an inwardly extending circumferential ange on the wall of the passage forming a seat, of a device controlling the admission of fluid into the container through said passage, said device comprising a ring detachably mounted in said passage and seating on said flange, an openwork framesup'ported in the passage inwardly of said ring, a closure plate, tensional means supported in said frame and cooperating With the plate to normally hold the same in seated position on said ring, means on the plate engaging said frame for guiding the plate in its movement toward and from said ring, the upper surface of the plate having spaced projecting members forming uid transmitting passages therearound whereby the insertion of a fluid admission tube into the passage will strike the projecting members of said l'plate to move the plate into open position against the action of said tensional means and permit uid to pass over the top of the plate and downwardly into the receptacle around the periphery of said plate.

8. The combination with a container having an admission passage including an inwardly extending circumferential iiange on the wall of the passage forming a seat, of a device controlling the admission of fluid into the container through said passage, said device comprising a ring detachably mounted in` said passage and seating on said flange, an openwork frame supported in the passage inwardly of said ring, a closure plate, tensional means supported in said frame and cooperating with the plate to normally hold the same in seated position on said ring, means on the plate engaging said frame for guiding the plate in its movement toward and from said ring, the upper surface of the plate having spaced projecting members forming iluid transmitting passages therearound whereby the insertion of a fluid admission tube into the passage will strike the projecting members of said plate to move the plate into open position against the action of said tensional means and permit fluid to pass over the top of the plate and downwardly into the receptacle around the periphery of said plate, and a closure cap in threaded engagement with said ring and controlling access to said plate.

ABRAHAM A. ARVINTZ. 

